WO2008101362A1

WO2008101362A1 - Furniture component for cushioning or in the form of a structural element and production method

Info

Publication number: WO2008101362A1
Application number: PCT/CH2008/000073
Authority: WO
Inventors: Harald Gerwig; Manfred Meier
Original assignee: Vitra Patente Ag
Priority date: 2007-02-20
Filing date: 2008-02-20
Publication date: 2008-08-28
Also published as: EP2121269A1

Abstract

The furniture component (9) for cushioning or in the form of a structural element has an exterior sheath (3, 4) produced by introduction of a plastic into a cavity (10, 20) of a mould (M), and outwardly has a defined surface structure, which is a mirror image of a surface structure specifically created for the cavity (10, 20). The sheath (3, 4) is produced by spray-application of the plastic into the cavity (10, 20) of the mould (M) or by feeding the plastic into the cavity (10, 20) and then distributing the plastic in the closed mould (M) by prescribed rotation of the mould (M). The sheath (3, 4) surrounds the furniture component (9) completely or only partially and with a uniform thickness or with a thickness having specific regional differences. In one alternative, the furniture component has been filled with air and/or with a filler (6), in particular a flexible foam or a granulated material, and can comprise at least one flexurally stiff insert (5). As an alternative, the furniture component comprises a flexurally stiff insert (5), preferably a sheet, e.g. composed of wooden material, which sheet has been provided with the sheath (3, 4) at least on one surface. If the furniture component has been filled with air and/or comprises the filler (6), there may be a valve located in the sheath (3, 4) or in the insert (5). The sheath (3, 4) and the filler (6) are composed of polyurethane, and the sheath (3, 4) here can also be polyurethane gel. The furniture component, filled with air or comprising a filler (6) in the form of a flexible foam or granulated material, serves as cushioning on furniture in the form of a seat or couch, for the seat, backrest, armrest or head rest thereof. The furniture component composed only of an insert (5) surrounded by the sheath (3, 4) is used as worktop, sheet material for carcass furniture, or a seat shell.

Description

Furniture component for upholstery or as a component and manufacturing method

Field of the Invention The present invention relates to a furniture component for upholstery - e.g. for a chair on the seat and back and armrests - or as a component, in particular as a table top or wall for a cabinet furniture. An associated invention relates to a manufacturing method.

State of the art

Furniture upholstery in the middle and lower price segment usually have a synthetic leather cover, under which there is usually a soft foam glued to it, on the other hand supported by a hard shell. The production of such furniture upholstery is technologically very complicated, in particular, if a very high optical quality is to be ensured. Moreover, the cushions thus produced are subject to the longevity-impairing problems due to plasticizer migration and embrittlement of artificial leather. It is also known to produce upholstery based on integral foam. In order to achieve a sufficient quality of the skin lying on the surface, it is necessary to select a correspondingly high foam hardness, whereby the softness of the pad is adversely affected.

Furniture panels are usually provided on the top with a scratch-resistant, hard coating - e.g. Melamine - provided. For table tops, this requires edge cover. While applying the powder coating can be dispensed with an edge coverage, as the coating can be performed without interruption to over the edges, but such surfaces are not so resistant.

Object of the invention

In relation to the known prior art, the invention has the object, a furniture component for use as upholstery or Bauele- to create an improved performance, especially in terms of soft feel, characterized by long durability and cost-effectively mass-produced. The surface must have a solid strength - in particular tensile strength - for a cushion as well as for a component. For upholstery, it is also important to achieve a pleasant compression hardness. In the case of a sound-absorbing effect is desirable. Another object is to propose a method for producing such furniture components.

Overview of the invention

The furniture component for upholstery or as a component has an outer covering, which results from the addition of a plastic. In a first variant of the method, the envelope is produced by spraying the plastic into a cavity of a mold; in a second variant of the method by introducing the plastic into a cavity of a mold and then distributing the plastic in the closed mold by means of planned rotation of the mold. The casing obtained has on the outside a defined surface structure, which represents a mirror image of a specifically created surface structure of the cavity.

The following features relate to specific embodiments of the invention: The envelope surrounds the furniture component completely or only partially and in uniform or selectively regionally different thickness. In an alternative, the furniture component with air and / or a filler, in particular a soft foam or granules, filled and may contain at least one rigid insert. Alternatively, the furniture component includes a rigid insert, preferably a plate, e.g. made of wood material, which is provided at least on a surface with the envelope.

If the furniture component has an air filling and / or contains the filler, a valve can be seated in the covering or the insert. The wrapper and the filler are made of polyurethane, which wrapper may also be polyurethane gel. The furniture component, which is filled with air and / or contains a filler, preferably in the form of a soft foam or granules, is used for upholstering a sitting or reclining furniture for its seat, backrest, armrests or headrest. The furniture component, which consists only of a surrounding of the envelope insert is used as a table top, plate material for carcass furniture or seat.

In a first variant of the method for the production of the aforementioned furniture component, the envelope is obtained by spraying a plastic, e.g. Polyurethane, produced in the cavity of a mold. In a second variant of the method, the envelope is formed by introducing the plastic into a cavity of a mold and then distributing the plastic in the closed mold by means of planned rotation of the mold. As a result, the envelope produced has on the outside a defined surface structure, which represents a mirror image of a specifically created surface structure of the cavity.

In one alternative, in both manufacturing methods, the mold comprises a first and a second mold half. The envelope is introduced into the cavities of both mold halves. The cavity to be formed together by the cavities remains air-filled or is filled with a filler, preferably a soft foam or granules. Or one fills the cavity with a filler, preferably a soft foam or granules, and vacuum-sealed, wherein the vacuuming can be done under the action of an impression to the impression on the furniture component to be produced. At least in one of the mold halves, an insert can be inserted before or after the entry of the envelope. The hardness of the furniture component to be produced is adjustable by the pressure of the air filling in the cavity formed jointly by the cavities or the intensity of the vacuuming of the filling filler, preferably a flexible foam or granules.

Alternatively, in the manufacturing process by spraying, the mold may have only a first mold half, and the casing will be in the cavity of this one Mold half introduced. In the cavity formed by the cavity with the enclosure therein an insert is inserted.

The wall thickness of the envelope on the furniture component can be produced in areas of different thicknesses. In the process by means of spraying, this is done by selectively targeted different order of the plastic; on the other hand, in the case of the method by means of planned rotation, by shaping the shape and / or positioning of the mold during rotation in a device and / or design of e.g. robot-controlled rotation course.

The inventive cushion is characterized by a largely design-free surface structure and high seating comfort with a pleasant feel. The upholstery can be made inflatable and adjustable in hardness. In addition, the upholstery is particularly suitable for use in the outdoor and cleanroom area, as the moisture is prevented from entering due to the closed outer skin and the release of particles from the upholstery is prevented. The device according to the invention, e.g. as a furniture plate or seat, also offers extensive design freedom and has a pleasant feel with soft touch.

Brief description of the attached drawings

Show it:

Figure 1A - an open two-part mold, in perspective view;

Figure 1 B - the arrangement according to Figure 1A, in vertical section;

Figure 1C - the open two-part mold according to Figure 1 A, with introduced into both halves of the form skin, in perspective view;

Figure 1 D - the arrangement according to Figure 1 C, in vertical section;

Figure 1 E - the arrangement according to Figure 1 C, closed, in vertical section;

Figure 1 F - the arrangement according to Figure 1 E, in vertical section;

FIG. 1G - a cushion-like, air-filled body produced in the arrangement according to FIG. 1E as a furniture component, in perspective view; view;

Figure 2A - the open mold according to Figure 1A with a venting channel and a spacer contour in the second mold half, in perspective view;

Figure 2B - the arrangement according to Figure 2A, in vertical section;

FIG. 2C shows the open two-part mold according to FIG. 2A, with the surface of the cavity completely covered with skin in the first half of the mold and with the skin surface covered with skin in the second half of the mold, in perspective view;

Figure 2D - the arrangement according to Figure 2C ₁ in vertical section;

Figure 2E - a disc-shaped insert, in perspective view;

FIG. 2F shows the arrangement according to FIG. 2C, with the insert according to FIG. 2E inserted in the second mold half, in perspective view;

Figure 2G - the arrangement according to Figure 2F, in vertical section;

Figure 2H - the arrangement according to Figure 2F, closed, in vertical section;

Figure 2J - the arrangement according to Figure 2H, after completion of the furniture component reopened, in vertical section;

FIG. 2K - a cushion-like, air-filled furniture component with insert, produced in the arrangement according to FIG. 2H, in perspective view;

Figure 3A - the arrangement according to Figure 1C, with in the first mold half additionally introduced filler and provided in the second mold half vent channel, in perspective view;

Figure 3B - the arrangement according to Figure 3A, in vertical section;

Figure 4A - the arrangement according to Figure 2F, with in the first mold half additionally introduced filler and a through hole in the insert, in perspective view;

Figure 4B - the arrangement according to Figure 4A, in vertical section; Figure 5A is a one-piece shape, in perspective view;

FIG. 5B shows the arrangement according to FIG. 5A, in vertical section;

FIG. 5C shows the arrangement according to FIG. 5A, with the skin inserted into the mold, in perspective view;

FIG. 5D shows the arrangement according to FIG. 5C, in vertical section;

Figure 5E is a plate-shaped insert, in perspective view;

FIG. 5F shows the arrangement according to FIG. 5C, with the insert according to FIG. 5E inserted into the mold, in perspective view;

FIG. 5G shows the arrangement according to FIG. 5F, in vertical section; and

FIG. 5H shows a plate-shaped furniture component produced in the arrangement according to FIG. 5F, turned, in perspective view.

embodiment

Reference to the accompanying drawings, the detailed description of embodiments of the inventive furniture component for use as a cushion or component and the process for the production of such furniture components follows.

The following definition applies to the entire further description. If reference numerals are included in a figure for the purpose of graphic clarity, but are not explained in the directly associated description text, reference is made to their mention in the preceding description of the figures. For the sake of clarity, the repeated designation of components in subsequent figures is usually dispensed with, as far as the drawing clearly shows that they are "recurring" components.

FIGS. 1A to 1 G

This sequence of figures illustrates the production of a pillow-like, air-filled furniture component 9, which has a rounded shape here by way of example.

_{l: ..} _H. ersteHungssc ^

There is a mold M with a first mold half 1 and a second mold half 2 available. In both mold halves 1, 2 is in each case a cavity 10,20 with a base 11, 21 and an edge surface 12,22 present, which ends at an associated edge 13,23. The cavities 10, 20 are positioned so that, when the mold M is closed, there is a common cavity for the furniture component 9 to be produced later. In the initial situation, the mold M is open in order to be able to feed the cavities 10,20.

2. _.. _{Herstelluηgsschritt.} _(. Figureη _.. _1C. _Urιd. 1 D)

For easier removal of the finished furniture component 9 from the mold M, it is advantageous to first coat the surfaces of the cavities 10, 20 with a release agent known per se. Depending on the desired surface finish of the finished furniture component 9, it is then possible to apply a lacquer layer to the surfaces of the cavities 10, 20. As a lacquer layer is suitable, for. Polyurethane. The results of these initial measures are not shown in the drawing.

The surfaces of the cavities 10, 20 prepared in this way are now covered with a skin 3, 4, the skin 3 being provided for the cavity 10 and the skin 4 provided the same for the cavity. The surfaces of both cavities 10.20, i. their bases 11, 21 and edge surfaces 12,22 are completely covered by the skins 3,4. As a material for the hides 3,4 is preferably a polyurethane into consideration, which is advantageously applied by spraying. As a result, a half-shell-shaped structure is obtained in the two mold halves 1, 2, which extends from the base surfaces 11, 21 to the edges 13, 23 and ends there with the skin edges 33, 43.

_, 3 _{; ..} Herste ^

Now, the mold M is closed, so that both mold halves 1, 2 lie on each other and the skin edges 33,43 collide, which stick together due to the current material consistency. The volume of air present in the two half-shell-shaped structures is combined in a hollow interior space 90 and is sealed off by the skins 3,4 from the outside environment. 4th _{: ..} HeisteJJ _. uπgsschπttχfigure _. 1 G)

After a required reaction time, a sufficient stability of the skins 3, 4 and the interconnected skin edges 33, 43 is achieved so that the mold M can be opened and the finished furniture component 9 can be removed therefrom. The obtained furniture component 9 is filled with air and has a closed envelope formed by the interconnected flexible and elastic skins 3,4. This furniture component 9 is therefore particularly suitable for use as a cushion, e.g. for a sitting or lying furniture. The outer surface structure of the finished furniture component 9 is a mirror image of the surface texture of the cavities 10, 20. A e.g. smooth, leather-colored, nub-like, grooved or reticulated surface on the furniture component 9 can be produced by complementary design in the cavities 10, 20. Likewise, you can mark 9 delimited areas on the surface of the furniture component. By varying the thickness of the skins 3,4 - e.g. generated by changing the duration and / or intensity when spraying the skins 3,4 - obtained on the furniture component 9 zones different cushioning characteristics. In a specific embodiment could be used in the finished furniture component 9, a valve to refill by diffusion escaped air into the interior 90 and / or to increase the air pressure present therein. The opening for insertion of the valve can be advantageously used e.g. through a vent channel 24 in one of the mold halves 1, 2 generate (see Figure 2B).

FIGS. 2A to 2K

This sequence of figures illustrates the production of a cushion-like, air-filled furniture component 9, which is provided on its base surface with a stabilizing disc-shaped insert 5.

l _{: ..} Heiste ^

The initial situation forms a form M in the open position which is identical in principle to the preceding example according to FIGS. 1A to 1F. In a modification located on the base 21 in the cavity 20 of the second mold half 2, the mouth of a vent channel 24, which leads from the cavity 20 through the second mold half 2 to the outside. Furthermore, on the base 21 a discus- dance contour 25 is provided, for example, consists of systematically distributed over the base 21 raised webs or cams.

_, 2 _{: ..} MeCsMluπgsschrittlFiaureπ _. 2C _. and 2D) It is assumed that prior to the introduction of the skins 3,4, the surfaces of the cavities 10, 20 are again provided with a release agent and a varnish layer sprayed thereon. In view of the furniture component 9 to be produced with an insert 5, the lacquer layer in the cavity 20 of the second mold half 2 will be applied only over the edge surface 22.

The surfaces of the cavities 10, 20 thus prepared are now covered with the skin 3, 4, the skin 3 extending over the entire surface of the cavity 10, while the skin 4 covers only the edge surface 22. This results in the first mold half 1 a half-shell-shaped structure which extends from the base 11 to the edge 13 and ends there at the skin edge 33. In the second mold half 2, corresponding to the edge surface 22, a closed band in the ring, which extends from the edge 23 with the skin edge 43 to the inner edge 44, which lies at the transition to the base 21.

3. _.. HersteNu ^

The disk-shaped insert 5, which is dimensioned complementary to the base surface 21 of the cavity 20 of the second mold half 2, is placed on the base 21. For the insert 5 is preferably a rigid plastic sheet into consideration, e.g. made of polypropylene, polyamide or polystyrene. The venting channel 24 and the spacer contour 25 allow the outflow of the air displaced when the insert 5 is inserted from the still open mold M to the outside. The inner edge 44 of the skin 4 glued airtight to the edge 54 of the insert 5, so that now also in the second mold half 2, a half-shell-shaped structure is formed, but with the insert 5 on the floor.

4 _: manufacturing step _. (Figure 2H)

When closing the mold M, both mold halves 1, 2 come to lie on each other. gene, the skin edges 33,43 collide and stick together. The volume of air in the two half-shells is combined in a hollow interior 90 and is sealed by the skins 3,4 and the insert 5 from the outside environment.

_, _{5: ..} Herstelluπgsschritt: _ _(. Figureri 2J and _{_2K..)}

After a defined reaction time, a sufficient stability of the skins 3, 4 as well as the connections between the skin edges 33, 43 and the inner edge 44 with the edge 54 is achieved so that the mold M can be opened and the finished furniture component 9 removed therefrom. The resulting furniture component 9 is again filled only with air and has a closed, formed by the interconnected flexible and elastic skins 3,4 and the more stable insert 5 enclosure. The produced furniture component 9 with the insert 5 is therefore particularly suitable for use as a cushion for a sitting or lying furniture, wherein the insert 5 forms a solid pad plate as a cover.

Alternatively, one could provide the skin 4 in the second mold half 2 over the entire surface of the cavity 20, ie including the base 21, and then lay the insert 5 so that the latter is externally covered by the skin 4. Here, it is ensured that the insert 5 remains in position in the finished furniture component 9, which can be secured, for example, by gluing between the insert 5 and the skin 4. It would also be possible to coat only a more or less wide edge zone of the base 21 with the skin 4 and then hang up the insert 5. In a further variant, before inserting the skin 4 into the second mold half 2, first the insert 5 is placed on the base 21 and then the skin 4 only over the edge surface 22 or over the edge surface 22 and an edge zone of the base 21 or over the edge surface 22 and the entire base 21 applied. Thus, the insert 5 is internally partially or completely covered by the skin 4. Finally, a double-sided, partial or complete coating of the insert 5 with skin 4 is conceivable. For special uses of the furniture component 9 could be provided in two mold halves 1, 2 deposits 5 and the previously described different extensions of the skin 4 in the cavity 20 and in the cavity 10 of the first mold half 1 are attached. As mentioned in the preceding example with regard to FIGS. 1A to 1 G, the furniture component 9 resulting from the sequence of FIGS. 2A to 2K can likewise be provided with a valve which is positioned either in the region of the hides 3, 4 or an insert 5.

FIGS. 3A and 3B

This pair of figures illustrates the production of a cushion-like furniture component 9 whose interior 90 is filled with a filler 6, e.g. a soft foam made of polyurethane, is filled and therefore well suited for upholstery purposes.

l _{: ..} and 2, _.. Production step These two production steps are identical to the description according to FIGS. 1A to 1D.

3 _{: ..} HersteJJuπgsschπtt; _, (F _|. Guren 3A and _{_3B.).}

When the mold M is open, the metered quantity of a filler 6 is added to the cavity 10 lined with the skin 3 and then the mold M is closed. During a designated reaction time, the filler 6 swells or foams, thereby also entering the cavity 20 of the second mold half 2, so that the air contained therein is displaced. The skin edges 33, 43 have connected to one another in an air-tight manner and the increasing air pressure ruptures the skin 4 in the region of the mouth of the venting channel 24 pointing into the cavity 20, so that the displaced air can flow away therefrom. Alternatively, it is possible to pierce the skin 4 mechanically in the area of the ventilation channel 24, even while the mold M is still open, preferably before the filler 6 is introduced. The further swelling filler 6 again closes off the hole in the skin 4 formed on the venting channel 24 in a plug-like manner. Alternatively, after introducing the skins 3, 4 into the two cavities 20, 30, it would be possible to close the mold M and fill the filler e with the skin 4 covering the mouth of the ventilation channel 24 via the venting channel 24 into the now common body. seed cavity-yielding cavities 20.30. By way of the hole punched into the skin 4 and the venting channel 24, the air displaced during swelling of the filler 6 and escaping gas can escape. After opening the mold M, the finished furniture component 9, the interior 90 is occupied by the filler 6, remove. For aesthetic reasons and for secure sealing, the torn in the skin 4 relative to the venting channel 24 hole, which is clogged by the foaming filler 6, could be additionally glued.

FIGS. 4A and 4B

This pair of figures illustrates the production of a cushion-like furniture component 9, which has a stabilizing, disc-shaped insert 5 at its base surface and whose interior space 90 is filled with a filler 6, preferably a soft foam made of polyurethane, and can therefore be used especially for upholstery purposes.

1 _: to _. 3 _:. First stop

These three starting production steps are for description according to the

Figures 2A to 2G identical.

With the mold M open, the metered quantity of filler 6 is again introduced into cavity 3 lined with skin 3, and then mold M is closed. During the reaction time, the filler 6 foams, thereby also entering the cavity 20 of the second mold half 2 and urges the air therein through the through hole 55 in the insert 5 in the vent channel 24 to the outside. The skin edges 33,43 have stuck together airtight. The further swelling filler 6 closes the existing in the insert 5 through hole 55 plug-like. If one wants to avoid a through-hole 55 in the insert 5, the air displaced by the foaming filler 6 will search for the path over the edge 54 of the insert 5 towards the venting channel 24 due to the resulting overpressure. This way of escape is open to the displaced air, since the insert 5 is inserted after the introduction of the skin 4. was added.

After opening the mold M, the finished furniture component 9, which contains an integrated insert 5 and the interior 90 of which is taken up by the filler 6, can be removed. Alternatively, one can introduce the filler 6 in the closed mold M via the venting channel 24 and the through hole 55. Furthermore, the variants described above with reference to FIGS. 2J and 2K can be used in the production sequence with the appropriate adjustments.

FIGS. 5A to 5H

This sequence of figures illustrates the production of a plate-shaped, coated furniture component 9, which has a rectangular blank here by way of example and is plan-shaped in the plane.

l _:. First time _. _sschritt. _(Figs. _5A. _And. _5B).

There is a one-piece mold M available, in which a cavity 10 with a base 11 and an edge surface 12 is present, which ends at an associated edge 13. The cavity 10 represents a cavity for the furniture component 9 to be produced later. In the initial situation, the mold M is completely empty.

_, ? _.:. , Manufacturers _. FQuren

For easier removal of the finished furniture component 9 from the mold M, it is again advantageous to coat the surfaces of the cavity 10 first with a release agent known per se. Depending on the planned surface finish of the finished furniture component 9, a lacquer layer can next be applied to the surfaces of the cavity 10. The thus prepared surfaces of the cavity 10 are now covered with a skin 3. The surface of the cavity 10, ie its base 11 and edge surface 12 are completely covered by the skin 3. As a result, a half-shell-shaped structure is obtained in the form M, which extends from the base 11 to the edge 13 and ends there with the skin edge 33. _, 3 _... manufacturing step; _, (F _|. Guren 5E to 5G)

The plate-shaped insert 5, which is dimensioned complementary to the base 11 of the cavity 10 of the mold M, is placed on the base 11. For the insert 5 is e.g. a rigid plastic or wooden plate in consideration. Analogously to the venting channel 24 and the spacer contour 25 in the second mold half 2 according to FIG. 2A, it is advantageous to likewise provide a vent, so that the backflow of air bubbles between the insert 5 and the skin 3 is avoided when the insert 5 is inserted.

_, 4 _{: ..} HeisteNu _. ngs _. schjjttχFi5ur _. 5H)

After a required reaction time a sufficient stability of the skin 3 and the connection between this and the insert 5 is achieved so that you can see the finished furniture component 9 from the mold M. At the obtained furniture component 9, the skin 3 adheres firmly to the previously determined cover page of the insert 5 and also encloses all its outer edges. This furniture component 9 is therefore particularly suitable for use as a panel, e.g. for a table or a cabinet furniture. The outer surface structure of the skin 3 on the finished furniture component 9 is a mirror image of the surface condition of the cavity 10, therefore the design possibilities are also applicable here, as previously described with respect to FIG. 1G. It is possible to create raised or lowered areas, e.g. as a mousepad or keyboard recording on a tabletop top.

In order to cover the insert 5 with skin 4 on all sides, the furniture component 9, which has previously been coated in the form M on one side with skin 3, can subsequently be provided with a skin 4 on the still uncoated surface inside or outside the mold M. It would be particularly advantageous to give the material for these skins 3,4 a more intumescent property, so that the skins 3,4 are given more soft character. In addition, due to the foaming behavior of the skins 3,4 any voids are filled by unevenness and dimensional deviations on the insert 5. Alternatively, for attaching a quasi back- or underside skin 4 on the insert 5 - analogous to the predecessor figures 1A to 4B - also a mold M are used, which is composed of a first and a second mold half 1, 2. When using two mold halves 1, 2 would be compensated with the order of the rear or underside skin 4 at the same time unevenness on this side of the insert 5. For positioning the already one-sided coated with skin 3 insert 5 in the second mold half 2 existing contours could be used in the insert 5, for example, provided for a table top recesses for attaching the table legs.

As a furniture component 9 not only flat structures come into consideration, such as a plan-shaped table top, but also uneven body, such as seats or curved table tops. In such bodies, breakthroughs can be applied - e.g. as a handle contour or for the passage of cables -, wherein the surfaces of the openings can also be provided with a skin 3,4.

Instead of the above-described method for producing the casing 3,4 by spraying the plastic into the mold M, in another method, the plastic is introduced into the cavity 10,20 of the mold M and then by planned rotation of the closed mold M therein distributed. Here, too, can produce a covering 3.4, which surrounds the furniture component 9 completely or only partially and in uniform or selectively regionally different thickness. The produced casing 3,4 has externally obtained a surface structure which represents a mirror image of the surface structure of the cavity 10, 20. The furniture component 9 is in turn filled with air and / or a filler 6, in particular a soft foam or granules, and may contain at least one rigid insert 5. Advantageously, a valve is provided in the enclosure 3, 4 or the insert 5.

The cavity formed jointly by the cavities 10, 20 remains air-filled in a first variant of the method. In a second variant of the method, the cavity is filled with a filler 6, preferably a soft foam or granules. A third variant of the method provides the cavity with a filler 6, preferably a soft foam or granules, to fill up and to vacuum, wherein the vacuuming can be done under the action of an impression for impression on the furniture component 9 to be produced. The hardness of the furniture component 9 to be produced is adjustable by the pressure of the air filling in the cavity formed by the cavities 10, 20 or the intensity of vacuuming the filling filler 6, preferably a soft foam or granules. In the method by means of scheduled rotation, the wall thickness of the envelope 3 on the furniture component 9 by forming the shape M and / or positioning the mold M during rotation in a device and / or design of the example robot-controlled rotation curve, partially different thickness produce.

Claims

Patent claims

1. furniture component (9) for upholstery or as a component with an outer sheath (3,4), which is produced by adding a plastic, characterized in that a) the sheath (3,4) is generated: aa) by spraying the Plastic in a cavity (10,20) of a mold (M); or ab) by introducing the plastic into a cavity (10,20) of a mold (M) and subsequent distribution of the plastic in the closed mold (M) by planned rotation of the mold (M); and b) the sheath (3, 4) has a defined outer surface structure, which represents a mirror image of a specifically created surface structure of the cavity (10, 20).

2. Furniture component (9) according to claim 1, characterized in that the envelope (3,4) surrounds the furniture component (9) completely or only partially and in uniform or selectively regionally different thickness.

3. Furniture component (9) according to at least one of claims 1 and

2, characterized in that the furniture component (9) with air and / or a filler (6), in particular a soft foam or granules, is filled and at least one rigid insert (5) may contain.

4. Furniture component (9) according to at least one of claims 1 and

2, characterized in that the furniture component (9) contains a rigid insert (5), preferably a plate, e.g. made of wood material, which is provided at least on one surface with the envelope (3,4).

5. Furniture component (9) according to at least one of claims 1 to

4, characterized in that the furniture component (9) with an air filling and / or the filler (6) in the sheath (3,4) or the insert (5) a valve having.

6. Furniture component (9) according to at least one of claims 1 to 5, characterized in that the sheath (3,4) and the filler consists of polyurethane, wherein the sheath (3,4) can also be made of polyurethane gel ,

7. Furniture component (9) according to at least one of claims 1 to 6, characterized in that a) the furniture component (9), which is filled with air and / or a filler (6), preferably in the form of a soft foam or granules containing for upholstering a sitting or reclining furniture for its seat, backrest, armrests or headrest; and b) the furniture component (9), which consists only of one of the enclosure (3,4) surrounded insert (5), serves as a table top, plate material for carcass furniture or seat.

8. A method for producing the furniture component (9) according to at least one of claims 1 to 7, characterized in that a) the envelope (3,4) by spraying a plastic, e.g. Polyurethane, into which cavity (10, 20) of a mold (M) is produced; or b) the enclosure (3, 4) is produced by introducing the plastic into a cavity (10, 20) of a mold (M) and subsequently distributing the plastic in the closed mold (M) by rotating the mold (M) as planned; with the result that c) the sheath (3, 4) has a defined surface structure on the outside, which represents a mirror image of a specifically created surface structure of the cavity (10, 20).

9. The method according to claim 8, characterized in that a) the mold (M) comprises a first and a second mold half (1, 2); b) the sheath (3,4) in the cavities (10,20) of both mold halves (1, 2) is introduced; c) the cavity to be formed jointly by the cavities (10, 20): ca) remains filled with air; or cb) is filled with a filler (6), preferably a flexible foam or a granulate; or cc) is filled with a filler (6), preferably a flexible foam or a granulate, and vacuumed, wherein the vacuuming can take place under the action of an impression for the impression to be made on the furniture component (9) to be produced; and d). at least in one of the mold halves (1, 2) before or after the entry of the envelope (3.4) an insert (5) can be inserted.

10. The method according to claim 9, characterized in that the hardness of the furniture component to be manufactured (9) by the pressure of the air filling in common of the cavities (10,20) formed cavity or the intensity of vacuuming the filling filler (6), preferably a soft foam or granules, is adjustable.

11. The method according to claim 8, characterized in that a) the mold (M) has at least a first mold half (1); b) the sheath (3) is introduced into the cavity (10) of the at least one mold half (1); and c) inserting a liner (5) into the cavity formed by the cavity (10) with the sheath (3) therein.

12. The method according to claim 8, characterized in that the

Wall thickness of the envelope (3) on the furniture component (9) can be generated in regions of different thicknesses; namely: a) in the process by means of spraying by regionally targeted different order of the plastic; or b) in the case of the method by means of planned rotation by shaping the mold (M) and / or positioning the mold (M) during rotation in a device and / or design of e.g. robot-controlled rotation course.